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Epoch Investment Partners’s Amphastar Pharmaceuticals AMPH Stock Holding History

Epoch Investment Partners’s Portfolio AMPH Stock Details AMPH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-898,895
Closed -$17.6M – 221
2026
Q1 		$17.6M Sell
898,895
-227,690
-20% -$5.57M 0.11% 186
2025
Q4 		$30.2M Sell
1,126,585
-7,401
-0.7% -$191K 0.17% 157
2025
Q3 		$30.2M Sell
1,133,986
-107,383
-9% -$2.77M 0.17% 163
2025
Q2 		$28.5M Sell
1,241,369
-19,938
-2% -$495K 0.15% 167
2025
Q1 		$36.6M Buy
1,261,307
+160,034
+15% +$5.11M 0.19% 161
2024
Q4 		$40.9M Sell
1,101,273
-89,837
-8% -$4.11M 0.2% 163
2024
Q3 		$57.8M Buy
1,191,110
+112,258
+10% +$4.93M 0.26% 148
2024
Q2 		$43.2M Buy
1,078,852
+280,390
+35% +$11.6M 0.2% 166
2024
Q1 		$35.1M Buy
798,462
+205,932
+35% +$10.6M 0.16% 190
2023
Q4 		$36.6M Buy
592,530
+460,473
+349% +$24.2M 0.17% 190
2023
Q3 		$6.07M Sell
132,057
-39
-0% -$2.13K 0.04% 285
2023
Q2 		$7.59M Buy
+132,096
New +$5.86M 0.04% 286

Other funds holding AMPH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Epoch Investment Partners's AMPH Position: Q2 2026 in Review

Epoch Investment Partners sold out of Amphastar Pharmaceuticals (AMPH) in Q2 2026, closing a stake of 898,895 shares — an estimated $17.6M sold.

Epoch Investment Partners first reported a position in AMPH in Q2 2023 and held it in 12 quarters. The position peaked at $57.8M in Q3 2024. 210 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Epoch Investment Partners reported no remaining Amphastar Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
  • Epoch Investment Partners sold 898,895 Amphastar Pharmaceuticals shares in Q2 2026, an estimated $17.6M.
  • Epoch Investment Partners first reported a position in Amphastar Pharmaceuticals in Q2 2023 and held it in 12 quarters.
  • Epoch Investment Partners's Amphastar Pharmaceuticals position peaked at $57.8M in Q3 2024.
  • 210 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Epoch Investment Partners's 13F filing for Q2 2026, filed 13 Aug 2026.